Flower was a Japanese pop girl group formed and managed by LDH from 2009 to 2019 and signed to the record label Sony Music Japan. They were a dance and vocal unit of collective girl group E-girls alongside Happiness, Dream and three other original E-girls members. The group consisted of one vocalist and four performers at the time of their disbandment.

Source: Wikipedia (https://en.wikipedia.org/wiki/Flower_(Japanese_group))